Beacon Press. Corpus Christi, Texas: South Texas Publishing Co., Inc., March 14, 1963

Beacon Press. Corpus Christi, Texas: South Texas Publishing Co., Inc., March 14, 1963, Volume: Gilbert R14. Robert L. Gilbert First Issues collection, Gilbert. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/525271 Accessed December 27, 2025.